Nut-lock.



E. A. BARDWELL.

NUT LOCK.

APPLICATION FILED OOT.1B, 1913.

Patented July 28, 1914.

THE NORRIS PETERS CO.. PHOTO-LITHO. WASHING-TON. D- C.

UNITED STATES PATENT OFFICE.

EDWIN A. BARDWELL, OF SI-IELBUB-NE FALLS, MASSACHUSETTS.

NU oon.

To all whom it may concern:

Be it known that I, EDWIN A. BARDWELL, citizen of the United States, residing at Shelburne Falls, in the county of Franklin and State of Massachusetts, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

This invention relates to an improved nut lock. and the principal object of the invention is to provide an improved means for looking a nut upon a bolt thus preventing the nut from moving from an adjusted position upon the bolt.

Another object of the invention is to :so

construct the nut-engaging means that the nut may be locked with a small amount of adjustment. I

Another object of the invention is to so construct the nut lock that the body portion may be formed from a single strip of material and thus very cheaply manufactured.

This invention is illustrated in the accompanying drawings wherein- Figure 1 is a side elevation showing the improved nut lock in use; Fig. 2 is a transverse sectional view taken along the line, 22 of Fig. 1;. and Flg. 3 1s a perspectiveview of the nut-engaging means.

In the accompanying drawings the numeral 10 indicates a bolt which is provided with a head 11 at one end and has its opposite end portion threaded as shown at 12.

The nut 13 is mounted upon the threaded end portion of the bolt and is intended to be screwed upon the bolt beyond thetrans- .versely extending opening 14 which is formed in the threaded end portion of: the bolt. A strip of sheet metal is bent. intermediate its length to form the U-sh'aped locking vmeans 15 which has its two arms 16 bent opening 14 formed in the bolt. This will in presence of securely connect the locking means with the bolt and will prevent the bolt from turning in the nut. By having the side arms 16 of the locking means provided. with the two sets of openings '18 and 19, the bolt and Copies of this pet-ant may be obtained for five cents each, by addressing the Commissioner of Patents,

v Specification of Letters Patent. P t t J l 23, 1 14 Application filed October 18, 1913. Serial No. 796,093. i

nut will be permitted ofa finer amount of adjustment since the nut can be tightened I until it is also as tight as necessary and then the locking means put in place and the nut, together with the locking means, then turned a suflicient amount to bring either the openings 18 or 19 into .alinement with the opening 14 so that the locking key 20 can be put in place. I

It has been stated that the locking device will be formedof metal, but it is, of course, obvious thatthis device can be formed of any suitable material. A locking device has thus been provided which will be very cilicient in operation andwhich can be very cheaply and easily manufactured.

What is claimed is: a

1. A nut lock comprising. a bolt having its threadeden'd portion provided with a transversely extending opening, a nut screwed uponsaid bolt, a locking strip en- 1 gagii'ig said nut and formed from a single will engage two faces of'the nut, each arm bemg provided with a plurahty. of openings positioned upon the opposite sides of the longitudlnal center of the arm whereby a selected set of openings may be brought into alinement with the opening of said bolt, and

openings of said bolt and arms.

. 2. .In a device of the character described, ,a bolt provided with a transversely extend: ing opening. .a nut arried by said bolt, a locking strip (intending across the end of,

said bdlt and having its end portion bent to form arms extendlng along the sides of said nut, the arms being provided with a plu- ,rality of alined openings whereby said. locking means may be placed in engagement with the sides of the nut and a selected set of openings brought into alinement with the opening of said bolt, and securingmeans passing through the alined openings of said bolt and locking means.

In testimony whereof I afiix my signature two witnesses.

'Witnesses CLIFTON L. MoKmei-ir, RoLAND S. HARDY.

Washington, D. G.

EDWIN A. BAR WELL; I

locking means passing through the alined 

